Stardog

Stardog is an enterprise knowledge graph platform that unifies data across silos using a semantic data layer combining knowledge graphs, virtualization, inference, and AI. The platform enables organizations to query data via SPARQL, GraphQL, and natural language while supporting RDF, OWL reasoning, and virtual graphs over relational sources. Stardog exposes a comprehensive HTTP API for database, query, transaction, and admin operations using HTTP Basic or OAuth Bearer authentication.

Stardog publishes 24 APIs on the APIs.io network, including Checkpoints API, Cluster Admin API, Data Caching API, and 21 more. Tagged areas include Knowledge Graph, Graph Database, Semantic Web, SPARQL, and Data Virtualization.

Stardog’s developer surface includes documentation, pricing, signup flow, GitHub presence, engineering blog, and 5 more developer resources.

🌐 Visit website 📡 Source on GitHub

25.1/100 emerging ▬ flat Agent 22/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6

25 APIs

Knowledge GraphGraph DatabaseSemantic WebSPARQLData VirtualizationEnterprise Data

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 25.1/100 · emerging

Contract Quality 11.1 / 25

Developer Ergonomics 2.2 / 20

Commercial Clarity 3.7 / 20

Operational Transparency 0.7 / 13

Governance 0.0 / 12

Discoverability 7.4 / 10

Agent readiness — 22/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/stardog: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 25

Individual APIs this provider publishes, each with its own machine-readable definition.

GraphQL 1

GraphQL schemas published by this provider.

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Signup

Signup

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHub

GitHub

Access & Security 2

Authentication, authorization, and security posture

TrustCenter

TrustCenter

DomainSecurity

DomainSecurity

Commercial 1

Pricing, plans, and the legal terms of use

Pricing

Pricing

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: stardog
name: Stardog
description: Stardog is an enterprise knowledge graph platform that unifies data across silos using a semantic data layer
  combining knowledge graphs, virtualization, inference, and AI. The platform enables organizations to query data via SPARQL,
  GraphQL, and natural language while supporting RDF, OWL reasoning, and virtual graphs over relational sources. Stardog exposes
  a comprehensive HTTP API for database, query, transaction, and admin operations using HTTP Basic or OAuth Bearer authentication.
type: Index
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/stardog.png
tags:
- Knowledge Graph
- Graph Database
- Semantic Web
- SPARQL
- Data Virtualization
- Enterprise Data
url: https://raw.githubusercontent.com/api-evangelist/stardog/refs/heads/main/apis.yml
created: '2026-05-11'
modified: '2026-05-11'
specificationVersion: '0.19'
apis:
- aid: stardog:http-api
  name: Stardog HTTP API
  description: Comprehensive HTTP API for managing Stardog databases, executing SPARQL queries, running transactions, managing
    users and roles, and administering the server. Authentication supports HTTP Basic over SSL or OAuth Bearer tokens via
    JWT in the Authorization header.
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - Databases
  - SPARQL
  - Transactions
  - Reasoning
  - Virtual Graphs
  - Admin
  properties:
  - type: Documentation
    url: https://stardog-union.github.io/http-docs/
  - type: Stardog Cloud REST API
    url: https://cloud.stardog.com/api/v1/docs
  - type: Developer Docs
    url: https://docs.stardog.com/developing/http-api
  - url: graphql/stardog-graphql.md
    type: GraphQL
- aid: stardog:stardog-checkpoints-api
  name: Stardog Checkpoints API
  description: Operations for database checkpoints
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - Checkpoints
  properties:
  - type: OpenAPI
    url: openapi/stardog-checkpoints-api-openapi.yml
- aid: stardog:stardog-cluster-admin-api
  name: Stardog Cluster Admin API
  description: Cluster administration operations
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - Cluster Admin
  properties:
  - type: OpenAPI
    url: openapi/stardog-cluster-admin-api-openapi.yml
- aid: stardog:stardog-data-caching-api
  name: Stardog Data Caching API
  description: Operations for working with cached data
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - Data Caching
  properties:
  - type: OpenAPI
    url: openapi/stardog-data-caching-api-openapi.yml
- aid: stardog:stardog-data-sources-api
  name: Stardog Data Sources API
  description: Operations for managing data sources, which are used by virtual graphs
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - Data Sources
  properties:
  - type: OpenAPI
    url: openapi/stardog-data-sources-api-openapi.yml
- aid: stardog:stardog-db-admin-api
  name: Stardog DB Admin API
  description: Database administration operations
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - DB Admin
  properties:
  - type: OpenAPI
    url: openapi/stardog-db-admin-api-openapi.yml
- aid: stardog:stardog-entityresolution-api
  name: Stardog EntityResolution API
  description: Operations for running Entity Resolution
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - EntityResolution
  properties:
  - type: OpenAPI
    url: openapi/stardog-entityresolution-api-openapi.yml
- aid: stardog:stardog-graph-store-protocol-api
  name: Stardog Graph Store Protocol API
  description: Operations on named graphs as detailed in https://www.w3.org/TR/sparql11-http-rdf-update/
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - Graph Store Protocol
  properties:
  - type: OpenAPI
    url: openapi/stardog-graph-store-protocol-api-openapi.yml
- aid: stardog:stardog-graphql-api
  name: Stardog GraphQL API
  description: GraphQL Queries
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - GraphQL
  properties:
  - type: OpenAPI
    url: openapi/stardog-graphql-api-openapi.yml
- aid: stardog:stardog-integrity-constraints-shacl-api
  name: Stardog Integrity Constraints / SHACL API
  description: The Integrity Constraints / SHACL API from Stardog — 5 operation(s) for integrity constraints / shacl.
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - Integrity Constraints / SHACL
  properties:
  - type: OpenAPI
    url: openapi/stardog-integrity-constraints-shacl-api-openapi.yml
- aid: stardog:stardog-knowledge-catalog-api
  name: Stardog Knowledge Catalog API
  description: Operations for managing the Knowledge Catalog module
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - Knowledge Catalog
  properties:
  - type: OpenAPI
    url: openapi/stardog-knowledge-catalog-api-openapi.yml
- aid: stardog:stardog-matcher-aligning-schemas-from-various-data-sources-api
  name: Stardog Matcher, aligning schemas from various data sources API
  description: The Matcher, aligning schemas from various data sources API from Stardog — 1 operation(s) for matcher, aligning
    schemas from various data sources.
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - Matcher, aligning schemas from various data sources
  properties:
  - type: OpenAPI
    url: openapi/stardog-matcher-aligning-schemas-from-various-data-sources-api-openapi.yml
- aid: stardog:stardog-monitoring-api
  name: Stardog Monitoring API
  description: Operations relating to monitoring processes on the server
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - Monitoring
  properties:
  - type: OpenAPI
    url: openapi/stardog-monitoring-api-openapi.yml
- aid: stardog:stardog-permissions-api
  name: Stardog Permissions API
  description: Operations on system permissions
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - Permissions
  properties:
  - type: OpenAPI
    url: openapi/stardog-permissions-api-openapi.yml
- aid: stardog:stardog-queries-api
  name: Stardog Queries API
  description: Operations relating to queries running on the server
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - Queries
  properties:
  - type: OpenAPI
    url: openapi/stardog-queries-api-openapi.yml
- aid: stardog:stardog-reasoning-api
  name: Stardog Reasoning API
  description: Operations for interacting with the inference engine
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - Reasoning
  properties:
  - type: OpenAPI
    url: openapi/stardog-reasoning-api-openapi.yml
- aid: stardog:stardog-roles-api
  name: Stardog Roles API
  description: Operations on system roles
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - Roles
  properties:
  - type: OpenAPI
    url: openapi/stardog-roles-api-openapi.yml
- aid: stardog:stardog-server-admin-api
  name: Stardog Server Admin API
  description: Server administration operations. May require superuser permissions
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - Server Admin
  properties:
  - type: OpenAPI
    url: openapi/stardog-server-admin-api-openapi.yml
- aid: stardog:stardog-server-status-metrics-api
  name: Stardog Server Status/Metrics API
  description: The Server Status/Metrics API from Stardog — 3 operation(s) for server status/metrics.
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - Server Status/Metrics
  properties:
  - type: OpenAPI
    url: openapi/stardog-server-status-metrics-api-openapi.yml
- aid: stardog:stardog-sparql-api
  name: Stardog SPARQL API
  description: SPARQL Update Queries
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - SPARQL
  properties:
  - type: OpenAPI
    url: openapi/stardog-sparql-api-openapi.yml
- aid: stardog:stardog-stored-functions-api
  name: Stardog Stored Functions API
  description: Operations relating to user-defined functions stored on the server
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - Stored Functions
  properties:
  - type: OpenAPI
    url: openapi/stardog-stored-functions-api-openapi.yml
- aid: stardog:stardog-transactions-api
  name: Stardog Transactions API
  description: Transactional operations
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - Transactions
  properties:
  - type: OpenAPI
    url: openapi/stardog-transactions-api-openapi.yml
- aid: stardog:stardog-users-api
  name: Stardog Users API
  description: Operations on system users
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/stardog-users-api-openapi.yml
- aid: stardog:stardog-virtual-graphs-api
  name: Stardog Virtual Graphs API
  description: Operations for virtualizing structured data
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - Virtual Graphs
  properties:
  - type: OpenAPI
    url: openapi/stardog-virtual-graphs-api-openapi.yml
- aid: stardog:stardog-virtual-graphs-external-compute-api
  name: Stardog Virtual Graphs External Compute API
  description: Operations for virtualizing structured data on external compute engines
  humanURL: https://stardog-union.github.io/http-docs/
  baseURL: https://cloud.stardog.com
  tags:
  - Virtual Graphs External Compute
  properties:
  - type: OpenAPI
    url: openapi/stardog-virtual-graphs-external-compute-api-openapi.yml
common:
- type: AgenticAccess
  url: agentic-access/stardog-agentic-access.yml
- type: TrustCenter
  url: security/stardog-trust-center.yml
- type: DomainSecurity
  url: security/stardog-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/stardog-union
- type: Website
  url: https://www.stardog.com
- type: Documentation
  url: https://docs.stardog.com/
- type: Pricing
  url: https://www.stardog.com/pricing/
- type: Signup
  url: https://cloud.stardog.com/
- type: GitHub
  url: https://github.com/stardog-union
- url: https://www.stardog.com/blog/
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com